IDEADEV-31082 - Cursor position in file is not saved on closing editor without save

platform/platform-api/src/com/intellij/openapi/fileEditor/FileEditorManagerListener.java

@@ -37,4 +37,21 @@ public interface FileEditorManagerListener extends EventListener{
    * TODO[vova] write javadoc
    */
   void selectionChanged(FileEditorManagerEvent event);
+
+  interface Before extends EventListener {
+    Topic<Before> FILE_EDITOR_MANAGER = new Topic<Before>("file editor before events", Before.class);
+
+    void beforeFileOpened(FileEditorManager source, VirtualFile file);
+    void beforeFileClosed(FileEditorManager source, VirtualFile file);
+
+    public static class Adapter implements Before {
+
+      public void beforeFileOpened(FileEditorManager source, VirtualFile file) {
+      }
+
+      public void beforeFileClosed(FileEditorManager source, VirtualFile file) {
+      }
+    }
+
+  }
 }

platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/EditorHistoryManager.java

@@ -65,6 +65,8 @@ public final class EditorHistoryManager extends AbstractProjectComponent impleme
     final MyUISettingsListener myUISettingsListener = new MyUISettingsListener();
 
     fileEditorManager.addFileEditorManagerListener(editorManagerListener, project);
+    project.getMessageBus().connect().subscribe(FileEditorManagerListener.Before.FILE_EDITOR_MANAGER, new MyEditorManagerBeforeListener());
+
     uiSettings.addUISettingsListener(myUISettingsListener);
     Disposer.register(project, new Disposable() {
       public void dispose() {
@@ -314,6 +316,13 @@ public final class EditorHistoryManager extends AbstractProjectComponent impleme
     }
   }
 
+  private final class MyEditorManagerBeforeListener extends FileEditorManagerListener.Before.Adapter {
+    @Override
+    public void beforeFileClosed(FileEditorManager source, VirtualFile file) {
+      updateHistoryEntry(file, false);
+    }
+  }
+
   /**
    * Cuts/extends history length
    */

platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/EditorWindow.java

@@ -131,6 +131,11 @@ public class EditorWindow {
           if (editors.isEmpty()) return;
           final EditorWithProviderComposite editor = findFileComposite(file);
 
+          final FileEditorManagerListener.Before beforePublisher =
+            editorManager.getProject().getMessageBus().syncPublisher(FileEditorManagerListener.Before.FILE_EDITOR_MANAGER);
+
+          beforePublisher.beforeFileClosed(editorManager, file);
+
           if (myTabbedPane != null) {
             final int componentIndex = findComponentIndex(editor.getComponent());
             if (componentIndex >= 0) { // editor could close itself on decomposition
@@ -157,9 +162,10 @@ public class EditorWindow {
           }
         }
         finally {
-          final FileEditorManagerListener publisher =
+          final FileEditorManagerListener afterPublisher =
             editorManager.getProject().getMessageBus().syncPublisher(FileEditorManagerListener.FILE_EDITOR_MANAGER);
-          publisher.fileClosed(editorManager, file);
+
+          afterPublisher.fileClosed(editorManager, file);
         }
       }
     });

platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/FileEditorManagerImpl.java

@@ -491,6 +491,8 @@ public class FileEditorManagerImpl extends FileEditorManagerEx implements Projec
       }
       newEditorCreated = true;
 
+      getProject().getMessageBus().syncPublisher(FileEditorManagerListener.Before.FILE_EDITOR_MANAGER).beforeFileOpened(this, file);
+      
       editors = new FileEditor[providers.length];
       for (int i = 0; i < providers.length; i++) {
         try {